Watch: A Viewer Called O’Reilly’s Interview ‘Disgusting’- His 21-Second Response Says It All

Bill O’Reilly stands by what he wrote about Ronald Reagan, and vowed Monday to “confront deceit head-on” as he continued his war of words with columnist George Will.

On Monday, O’Reilly used one segment of his Fox News show to read some of what he said were 10,000 emails regarding a feisty Friday segment with Will, who recently castigated O’Reilly’s new book.

“This book is nonsensical history and execrable citizenship, and should come with a warning: ‘Caution — you are about to enter a no-facts zone,'” Will wrote.

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O’Reilly’s book, Killing Reagan, suggests President Reagan suffered early symptoms of Alzheimer’s disease as a result of his wounds in the March 1981 assassination attempt. After Will’s comments, O’Reilly invited him to appear on his Friday show, which devolved rapidly into an argument.

“All of what we write in ‘Killing Reagan’ is true. You’re a hack!” O’Reilly told Will at one point.

Some viewers found the duel a bit much. On Monday, O’Reilly read some of their comments on his show.

“O’Reilly, long time viewer,” wrote Henry Jeulch. “Your aggressive reaction to George Will was disgusting. How about a bit of civility?”

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O’Reilly offered a vivid defense.

“There are two kinds of people in the world, Henry,” O’Reilly replied. “Those who confront deceit head-on. And those who take other avenues. If you do indeed watch me, you know which kind of guy I am. Every word of Killing Reagan is true. George Will chose to attack the book, The Factor, and me — I called him on it.”

In the aftermath of Friday’s show, Will had called O’Reilly “unhinged.” O’Reilly took a different approach to their differences.

“I believe his elitist presentation doesn’t fit our format, nothing personal,” O’Reilly said. “Based upon his remarks over the years he sees me as a vulgarian…who does not deserve the forum I have, so there is little common ground between us.”